title: Davallialactone from mushroom reduced premature senescence and inflammation on glucose oxidative stress in human diploid fibroblast cells.
abstract: Mushrooms are both food and a source of natural compounds of biopharmaceutical interest. The purpose of this study was to clarify whether davallialactone from mushroom extract affected the pathogenesis of hyperglycemia oxidative stress and the aging process in human diploid fibroblast (HDF) cells. The high-glucose state with glucose oxidase resulted in glucose oxidative stress, induction of inflammatory molecules, dysfunction of antioxidant molecules, and activation of mitogen-activated protein kinase (MAPKs) and its downstream signaling in old HDF cells. The exposure of glucose oxidative stress in middle-stage cells led to stress-induced premature senescence (SIPS) via senescence-associated β-galactosidase (SA β-gal) activity and displayed replicative senescence phenomena. However, davallialactone reduces the pathogenesis of glucose oxidative stress and the aging process through down-regulation of SA β-gal activity. These results strongly suggest that natural compounds, especially mushroom extract davallialactone, improve the pathogenesis of glucose oxidative stress and the aging process. Hence, davallialactone has potential in the treatment of diabetes mellitus or age-related disease complications.
authors.affiliation: Department of Pediatrics, School of Medicine, Chonbuk National University , Jeonju 561-712, Republic of Korea.
authors.forename: Tae-Ki
authors.initials: TK
authors.lastname: Yang
authors.forename: Young-Hee
authors.initials: YH
authors.lastname: Lee
authors.forename: Usha
authors.initials: U
authors.lastname: Paudel
authors.forename: Govinda
authors.initials: G
authors.lastname: Bhattarai
authors.forename: Bong-Sik
authors.initials: BS
authors.lastname: Yun
authors.forename: Pyoung-Han
authors.initials: PH
authors.lastname: Hwang
authors.forename: Ho-Keun
authors.initials: HK
authors.lastname: Yi
mesh_terms: D001487:Basidiomycota / Q000737:chemistry; D002478:Cells, Cultured; D016922:Cellular Senescence / Q000187:drug effects*; D004171:Diploidy; D005347:Fibroblasts / Q000166:cytology* / Q000378:metabolism; D005947:Glucose / Q000378:metabolism; D005949:Glucose Oxidase / Q000378:metabolism; D006801:Humans; D007783:Lactones / Q000494:pharmacology*; D018384:Oxidative Stress / Q000187:drug effects*; D017382:Reactive Oxygen Species / Q000378:metabolism; D001616:beta-Galactosidase / Q000378:metabolism
chemical_list: D007783:Lactones; D017382:Reactive Oxygen Species; C068766:davallialactone; D005949:Glucose Oxidase; D001616:beta-Galactosidase; D005947:Glucose